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Episodes
1. Episode 154m
Detective Hansaem suspects Ena after she fails to remember anything about her uncle's murder.
2. Episode 250m
A puzzle piece arrives on the same day as a murder, and Hansaem suspects it’s no coincidence.
3. Episode 352m
Ena and Hansaem warily work together to solve the case.
4. Episode 41h 2m
A prime suspect emerges, but things aren't what they seem.
5. Episode 557m
Another puzzle piece arrives, and a new murder case unfolds.
6. Episode 658m
The meaning behind the drawings on the puzzle pieces is uncovered.
7. Episode 753m
Hansaem makes a shocking discovery and becomes unsure of whom to trust.
8. Episode 851m
As the investigation escalates, new suspects begin to emerge.
9. Episode 949m
An unexpected suspect is arrested, shocking everyone involved.
10. Episode 1049m
A stunning truth behind the serial murders is revealed.
11. Episode 1150m
The final puzzle piece arrives will the team be able to catch the killer in time?